Lost Cities is a card game in the Kosmos two-player series. The game consists of a single deck of cards of rank 2–10 in 5 different colors with 3 special "handshakes" ("HS" in scoring examples below) in each suit. There is also a board which functions only to hold and organize discarded cards and is largely superfluous. Games last around 15 minutes. This is generally considered a good "couples" game and is often recommended for people with non-gamer partners.